Research Article
Effect of Posttreatment on the Catalytic Performances of Fe-N-C for Oxygen Reduction Reactions
Table 1
N1s XPS data of FeDN catalysts.
| | Pyridinic-N | Fe-N | Pyrrolic-N | Graphitic N | Oxidized N |
| | FeDN | Binding energy (eV) | 398.3 | 399.3 | 400.7 | 401.5 | 402.2 | | Relative intensity (%) | 23.7 | 14.0 | 27.2 | 21.9 | 13.2 | | FeDN-AT | Binding energy (eV) | 389.4 | 399.3 | 400.6 | 401.5 | 402.6 | | Relative intensity (%) | 25.0 | 4.8 | 38.8 | 5.0 | 26.4 | | FeDN-AT -300 | Binding energy (eV) | 398.3 | 399.5 | 400.5 | 401.1 | 402.5 | | Relative intensity (%) | 31.7 | 9.3 | 29.5 | 12.8 | 16.7 | | FeDN-AT -500 | Binding energy (eV) | 398.2 | 399.3 | 400.5 | 401.1 | 402.4 | | Relative intensity (%) | 33.1 | 12.4 | 27.0 | 17.3 | 10.2 | | FeDN-AT -700 | Binding energy (eV) | 398.2 | 399.1 | 400.5 | 401.0 | 402.4 | | Relative intensity (%) | 32.9 | 12.3 | 25.0 | 20.2 | 9.6 |
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